[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / StatusCode / DatahubStatusCodeHandlerDxe / DataHubStatusCodeWorker.c

/** @file\r
  Data Hub status code worker.\r
\r
  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "DatahubStatusCodeHandlerDxe.h"\r
\r
//\r
// Initialize FIFO to cache records.\r
//\r
LIST_ENTRY                mRecordsFifo          = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);\r
LIST_ENTRY                mRecordsBuffer        = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsBuffer);\r
UINT32                    mLogDataHubStatus     = 0;\r
EFI_EVENT                 mLogDataHubEvent;\r
//\r
// Cache data hub protocol.\r
//\r
EFI_DATA_HUB_PROTOCOL     *mDataHubProtocol = NULL;\r
\r
\r
/**\r
  Retrieve one record of from free record buffer. This record is removed from\r
  free record buffer.\r
\r
  This function retrieves one record from free record buffer.\r
  If the pool has been exhausted, then new memory would be allocated for it.\r
\r
  @return  Pointer to the free record.\r
           NULL means failure to allocate new memeory for free record buffer.\r
\r
**/\r
DATA_HUB_STATUS_CODE_DATA_RECORD *\r
AcquireRecordBuffer (\r
  VOID\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD *Record;\r
  EFI_TPL                   CurrentTpl;\r
  LIST_ENTRY                *Node;\r
  UINT32                    Index;\r
\r
  CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
\r
  if (!IsListEmpty (&mRecordsBuffer)) {\r
    //\r
    // Strip one entry from free record buffer.\r
    //\r
    Node = GetFirstNode (&mRecordsBuffer);\r
    RemoveEntryList (Node);\r
\r
    Record = BASE_CR (Node, DATAHUB_STATUSCODE_RECORD, Node);\r
  } else {\r
    if (CurrentTpl > TPL_NOTIFY) {\r
      //\r
      // Memory management should work at <=TPL_NOTIFY\r
      // \r
      gBS->RestoreTPL (CurrentTpl);\r
      return NULL;\r
    }\r
\r
    //\r
    // If free record buffer is exhausted, then allocate 16 new records for it.\r
    //\r
    gBS->RestoreTPL (CurrentTpl);\r
    Record   = (DATAHUB_STATUSCODE_RECORD *) AllocateZeroPool (sizeof (DATAHUB_STATUSCODE_RECORD) * 16);\r
    if (Record == NULL) {\r
      return NULL;\r
    }\r
\r
    CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
    //\r
    // Here we only insert 15 new records to the free record buffer, for the first record\r
    // will be returned immediately.\r
    //\r
    for (Index = 1; Index < 16; Index++) {\r
      InsertTailList (&mRecordsBuffer, &Record[Index].Node);\r
    }\r
  }\r
\r
  Record->Signature = DATAHUB_STATUS_CODE_SIGNATURE;\r
  InsertTailList (&mRecordsFifo, &Record->Node);\r
\r
  gBS->RestoreTPL (CurrentTpl);\r
\r
  return (DATA_HUB_STATUS_CODE_DATA_RECORD *) (Record->Data);\r
}\r
\r
\r
/**\r
  Retrieve one record from Records FIFO. The record would be removed from FIFO.\r
\r
  @return   Point to record, which is ready to be logged.\r
            NULL means the FIFO of record is empty.\r
\r
**/\r
DATA_HUB_STATUS_CODE_DATA_RECORD *\r
RetrieveRecord (\r
  VOID\r
  )\r
{\r
  DATA_HUB_STATUS_CODE_DATA_RECORD  *RecordData;\r
  DATAHUB_STATUSCODE_RECORD         *Record;\r
  LIST_ENTRY                        *Node;\r
  EFI_TPL                           CurrentTpl;\r
\r
  RecordData = NULL;\r
\r
  CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
\r
  if (!IsListEmpty (&mRecordsFifo)) {\r
    Node = GetFirstNode (&mRecordsFifo);\r
    Record = CR (Node, DATAHUB_STATUSCODE_RECORD, Node, DATAHUB_STATUS_CODE_SIGNATURE);\r
    ASSERT (Record != NULL);\r
\r
    RemoveEntryList (&Record->Node);\r
    RecordData = (DATA_HUB_STATUS_CODE_DATA_RECORD *) Record->Data;\r
  }\r
\r
  gBS->RestoreTPL (CurrentTpl);\r
\r
  return RecordData;\r
}\r
\r
/**\r
  Release given record and return it to free record buffer.\r
  \r
  @param RecordData  Pointer to the record to release.\r
\r
**/\r
VOID\r
ReleaseRecord (\r
  DATA_HUB_STATUS_CODE_DATA_RECORD  *RecordData\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD         *Record;\r
  EFI_TPL                           CurrentTpl;\r
\r
  Record = CR (RecordData, DATAHUB_STATUSCODE_RECORD, Data[0], DATAHUB_STATUS_CODE_SIGNATURE);\r
  ASSERT (Record != NULL);\r
\r
  CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
\r
  InsertTailList (&mRecordsBuffer, &Record->Node);\r
  Record->Signature = 0;\r
\r
  gBS->RestoreTPL (CurrentTpl);\r
}\r
\r
/**\r
  Report status code into DataHub.\r
\r
  @param  CodeType             Indicates the type of status code being reported.\r
  @param  Value                Describes the current status of a hardware or software entity.\r
                               This included information about the class and subclass that is used to\r
                               classify the entity as well as an operation.\r
  @param  Instance             The enumeration of a hardware or software entity within\r
                               the system. Valid instance numbers start with 1.\r
  @param  CallerId             This optional parameter may be used to identify the caller.\r
                               This parameter allows the status code driver to apply different rules to\r
                               different callers.\r
  @param  Data                 This optional parameter may be used to pass additional data.\r
\r
  @retval EFI_SUCCESS          The function completed successfully.\r
  @retval EFI_DEVICE_ERROR     Function is reentered.\r
  @retval EFI_DEVICE_ERROR     Function is called at runtime.\r
  @retval EFI_OUT_OF_RESOURCES Fail to allocate memory for free record buffer.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
DataHubStatusCodeReportWorker (\r
  IN EFI_STATUS_CODE_TYPE     CodeType,\r
  IN EFI_STATUS_CODE_VALUE    Value,\r
  IN UINT32                   Instance,\r
  IN EFI_GUID                 *CallerId,\r
  IN EFI_STATUS_CODE_DATA     *Data OPTIONAL\r
  )\r
{\r
  DATA_HUB_STATUS_CODE_DATA_RECORD  *Record;\r
  UINT32                            ErrorLevel;\r
  BASE_LIST                         Marker;\r
  CHAR8                             *Format;\r
  UINTN                             CharCount;\r
\r
  //\r
  // Use atom operation to avoid the reentant of report.\r
  // If current status is not zero, then the function is reentrancy.\r
  //\r
  if (InterlockedCompareExchange32 (&mLogDataHubStatus, 0, 0) == 1) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  Record = AcquireRecordBuffer ();\r
  if (Record == NULL) {\r
    //\r
    // There are no empty record buffer in private buffers\r
    //\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  //\r
  // Construct Data Hub Extended Data\r
  //\r
  Record->CodeType = CodeType;\r
  Record->Value    = Value;\r
  Record->Instance = Instance;\r
\r
  if (CallerId != NULL) {\r
    CopyMem (&Record->CallerId, CallerId, sizeof (EFI_GUID));\r
  }\r
\r
  if (Data != NULL) {\r
    if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) {\r
      CharCount = UnicodeBSPrintAsciiFormat (\r
                    (CHAR16 *) (Record + 1),\r
                    EFI_STATUS_CODE_DATA_MAX_SIZE,\r
                    Format,\r
                    Marker\r
                    );\r
      //\r
      // Change record data type to DebugType.\r
      //\r
      CopyGuid (&Record->Data.Type, &gEfiStatusCodeDataTypeDebugGuid);\r
      Record->Data.HeaderSize = Data->HeaderSize;\r
      Record->Data.Size = (UINT16) ((CharCount + 1) * sizeof (CHAR16));\r
    } else {\r
      //\r
      // Copy status code data header\r
      //\r
      CopyMem (&Record->Data, Data, sizeof (EFI_STATUS_CODE_DATA));\r
\r
      if (Data->Size > EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
        Record->Data.Size = EFI_STATUS_CODE_DATA_MAX_SIZE;\r
      }\r
      CopyMem ((VOID *) (Record + 1), Data + 1, Record->Data.Size);\r
    }\r
  }\r
\r
  gBS->SignalEvent (mLogDataHubEvent);\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  The Event handler which will be notified to log data in Data Hub.\r
\r
  @param  Event       Instance of the EFI_EVENT to signal whenever data is\r
                      available to be logged in the system.\r
  @param  Context     Context of the event.\r
\r
**/\r
VOID\r
EFIAPI\r
LogDataHubEventCallBack (\r
  IN  EFI_EVENT     Event,\r
  IN  VOID          *Context\r
  )\r
{\r
  DATA_HUB_STATUS_CODE_DATA_RECORD  *Record;\r
  UINT32                            Size;\r
  UINT64                            DataRecordClass;\r
\r
  //\r
  // Use atom operation to avoid the reentant of report.\r
  // If current status is not zero, then the function is reentrancy.\r
  //\r
  if (InterlockedCompareExchange32 (&mLogDataHubStatus, 0, 1) == 1) {\r
    return;\r
  }\r
\r
  //\r
  // Log DataRecord in Data Hub.\r
  // Journal records fifo to find all record entry.\r
  //\r
  while (TRUE) {\r
    //\r
    // Retrieve record from record FIFO until no more record can be retrieved.\r
    //\r
    Record = RetrieveRecord ();\r
    if (Record == NULL) {\r
      break;\r
    }\r
    //\r
    // Add in the size of the header we added.\r
    //\r
    Size = sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD) + (UINT32) Record->Data.Size;\r
\r
    if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
    } else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_ERROR;\r
    } else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG;\r
    } else {\r
      //\r
      // Should never get here.\r
      //\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG |\r
        EFI_DATA_RECORD_CLASS_ERROR |\r
        EFI_DATA_RECORD_CLASS_DATA |\r
        EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
    }\r
\r
    //\r
    // Log DataRecord in Data Hub\r
    //\r
    mDataHubProtocol->LogData (\r
                        mDataHubProtocol,\r
                        &gEfiDataHubStatusCodeRecordGuid,\r
                        &gEfiStatusCodeRuntimeProtocolGuid,\r
                        DataRecordClass,\r
                        Record,\r
                        Size\r
                        );\r
\r
    ReleaseRecord (Record);\r
  }\r
\r
  //\r
  // Restore the nest status of report\r
  //\r
  InterlockedCompareExchange32 (&mLogDataHubStatus, 1, 0);\r
}\r
\r
\r
/**\r
  Locate Data Hub Protocol and create event for logging data\r
  as initialization for data hub status code worker.\r
\r
  @retval EFI_SUCCESS  Initialization is successful.\r
\r
**/\r
EFI_STATUS\r
DataHubStatusCodeInitializeWorker (\r
  VOID\r
  )\r
{\r
  EFI_STATUS  Status;\r
\r
  Status = gBS->LocateProtocol (\r
                  &gEfiDataHubProtocolGuid, \r
                  NULL, \r
                  (VOID **) &mDataHubProtocol\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    mDataHubProtocol = NULL;\r
    return Status;\r
  }\r
\r
  //\r
  // Create a Notify Event to log data in Data Hub\r
  //\r
  Status = gBS->CreateEvent (\r
                  EVT_NOTIFY_SIGNAL,\r
                  TPL_CALLBACK,\r
                  LogDataHubEventCallBack,\r
                  NULL,\r
                  &mLogDataHubEvent\r
                  );\r
\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
Commit	Line	Data
28a94112	1	/** @file\r
	2	Data Hub status code worker.\r
	3	\r
	4	Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
	15	#include "DatahubStatusCodeHandlerDxe.h"\r
	16	\r
	17	//\r
	18	// Initialize FIFO to cache records.\r
	19	//\r
	20	LIST_ENTRY mRecordsFifo = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);\r
	21	LIST_ENTRY mRecordsBuffer = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsBuffer);\r
	22	UINT32 mLogDataHubStatus = 0;\r
	23	EFI_EVENT mLogDataHubEvent;\r
	24	//\r
	25	// Cache data hub protocol.\r
	26	//\r
	27	EFI_DATA_HUB_PROTOCOL *mDataHubProtocol = NULL;\r
	28	\r
	29	\r
	30	/**\r
	31	Retrieve one record of from free record buffer. This record is removed from\r
	32	free record buffer.\r
	33	\r
	34	This function retrieves one record from free record buffer.\r
	35	If the pool has been exhausted, then new memory would be allocated for it.\r
	36	\r
	37	@return Pointer to the free record.\r
	38	NULL means failure to allocate new memeory for free record buffer.\r
	39	\r
	40	**/\r
	41	DATA_HUB_STATUS_CODE_DATA_RECORD *\r
	42	AcquireRecordBuffer (\r
	43	VOID\r
	44	)\r
	45	{\r
	46	DATAHUB_STATUSCODE_RECORD *Record;\r
	47	EFI_TPL CurrentTpl;\r
	48	LIST_ENTRY *Node;\r
	49	UINT32 Index;\r
	50	\r
	51	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
	52	\r
	53	if (!IsListEmpty (&mRecordsBuffer)) {\r
	54	//\r
	55	// Strip one entry from free record buffer.\r
	56	//\r
	57	Node = GetFirstNode (&mRecordsBuffer);\r
	58	RemoveEntryList (Node);\r
	59	\r
	60	Record = BASE_CR (Node, DATAHUB_STATUSCODE_RECORD, Node);\r
	61	} else {\r
	62	if (CurrentTpl > TPL_NOTIFY) {\r
	63	//\r
	64	// Memory management should work at <=TPL_NOTIFY\r
65	// \r
66	gBS->RestoreTPL (CurrentTpl);\r
67	return NULL;\r
68	}\r
69	\r
70	//\r
71	// If free record buffer is exhausted, then allocate 16 new records for it.\r
72	//\r
73	gBS->RestoreTPL (CurrentTpl);\r
74	Record = (DATAHUB_STATUSCODE_RECORD ) AllocateZeroPool (sizeof (DATAHUB_STATUSCODE_RECORD) 16);\r
75	if (Record == NULL) {\r
76	return NULL;\r
77	}\r
78	\r
79	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
80	//\r
81	// Here we only insert 15 new records to the free record buffer, for the first record\r
82	// will be returned immediately.\r
83	//\r
84	for (Index = 1; Index < 16; Index++) {\r
85	InsertTailList (&mRecordsBuffer, &Record[Index].Node);\r
86	}\r
87	}\r
88	\r
89	Record->Signature = DATAHUB_STATUS_CODE_SIGNATURE;\r
90	InsertTailList (&mRecordsFifo, &Record->Node);\r
91	\r
92	gBS->RestoreTPL (CurrentTpl);\r
93	\r
94	return (DATA_HUB_STATUS_CODE_DATA_RECORD *) (Record->Data);\r
95	}\r
96	\r
97	\r
98	/**\r
99	Retrieve one record from Records FIFO. The record would be removed from FIFO.\r
100	\r
101	@return Point to record, which is ready to be logged.\r
102	NULL means the FIFO of record is empty.\r
103	\r
104	**/\r
105	DATA_HUB_STATUS_CODE_DATA_RECORD *\r
106	RetrieveRecord (\r
107	VOID\r
108	)\r
109	{\r
110	DATA_HUB_STATUS_CODE_DATA_RECORD *RecordData;\r
111	DATAHUB_STATUSCODE_RECORD *Record;\r
112	LIST_ENTRY *Node;\r
113	EFI_TPL CurrentTpl;\r
114	\r
115	RecordData = NULL;\r
116	\r
117	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
118	\r
119	if (!IsListEmpty (&mRecordsFifo)) {\r
120	Node = GetFirstNode (&mRecordsFifo);\r
121	Record = CR (Node, DATAHUB_STATUSCODE_RECORD, Node, DATAHUB_STATUS_CODE_SIGNATURE);\r
122	ASSERT (Record != NULL);\r
123	\r
124	RemoveEntryList (&Record->Node);\r
125	RecordData = (DATA_HUB_STATUS_CODE_DATA_RECORD *) Record->Data;\r
126	}\r
127	\r
128	gBS->RestoreTPL (CurrentTpl);\r
129	\r
130	return RecordData;\r
131	}\r
132	\r
133	/**\r
134	Release given record and return it to free record buffer.\r
135	\r
136	@param RecordData Pointer to the record to release.\r
137	\r
138	**/\r
139	VOID\r
140	ReleaseRecord (\r
141	DATA_HUB_STATUS_CODE_DATA_RECORD *RecordData\r
142	)\r
143	{\r
144	DATAHUB_STATUSCODE_RECORD *Record;\r
145	EFI_TPL CurrentTpl;\r
146	\r
147	Record = CR (RecordData, DATAHUB_STATUSCODE_RECORD, Data[0], DATAHUB_STATUS_CODE_SIGNATURE);\r
148	ASSERT (Record != NULL);\r
149	\r
150	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
151	\r
152	InsertTailList (&mRecordsBuffer, &Record->Node);\r
153	Record->Signature = 0;\r
154	\r
155	gBS->RestoreTPL (CurrentTpl);\r
156	}\r
157	\r
158	/**\r
159	Report status code into DataHub.\r
160	\r
161	@param CodeType Indicates the type of status code being reported.\r
162	@param Value Describes the current status of a hardware or software entity.\r
163	This included information about the class and subclass that is used to\r
164	classify the entity as well as an operation.\r
165	@param Instance The enumeration of a hardware or software entity within\r
166	the system. Valid instance numbers start with 1.\r
167	@param CallerId This optional parameter may be used to identify the caller.\r
168	This parameter allows the status code driver to apply different rules to\r
169	different callers.\r
170	@param Data This optional parameter may be used to pass additional data.\r
171	\r
172	@retval EFI_SUCCESS The function completed successfully.\r
173	@retval EFI_DEVICE_ERROR Function is reentered.\r
174	@retval EFI_DEVICE_ERROR Function is called at runtime.\r
175	@retval EFI_OUT_OF_RESOURCES Fail to allocate memory for free record buffer.\r
176	\r
177	**/\r
178	EFI_STATUS\r
b61bb3b3	179	EFIAPI\r
28a94112	180	DataHubStatusCodeReportWorker (\r
	181	IN EFI_STATUS_CODE_TYPE CodeType,\r
	182	IN EFI_STATUS_CODE_VALUE Value,\r
	183	IN UINT32 Instance,\r
	184	IN EFI_GUID *CallerId,\r
	185	IN EFI_STATUS_CODE_DATA *Data OPTIONAL\r
	186	)\r
	187	{\r
	188	DATA_HUB_STATUS_CODE_DATA_RECORD *Record;\r
	189	UINT32 ErrorLevel;\r
	190	BASE_LIST Marker;\r
	191	CHAR8 *Format;\r
	192	UINTN CharCount;\r
	193	\r
	194	//\r
	195	// Use atom operation to avoid the reentant of report.\r
	196	// If current status is not zero, then the function is reentrancy.\r
	197	//\r
	198	if (InterlockedCompareExchange32 (&mLogDataHubStatus, 0, 0) == 1) {\r
	199	return EFI_DEVICE_ERROR;\r
	200	}\r
	201	\r
	202	Record = AcquireRecordBuffer ();\r
	203	if (Record == NULL) {\r
	204	//\r
	205	// There are no empty record buffer in private buffers\r
	206	//\r
	207	return EFI_OUT_OF_RESOURCES;\r
	208	}\r
	209	\r
	210	//\r
	211	// Construct Data Hub Extended Data\r
	212	//\r
	213	Record->CodeType = CodeType;\r
	214	Record->Value = Value;\r
	215	Record->Instance = Instance;\r
	216	\r
	217	if (CallerId != NULL) {\r
	218	CopyMem (&Record->CallerId, CallerId, sizeof (EFI_GUID));\r
	219	}\r
	220	\r
	221	if (Data != NULL) {\r
	222	if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) {\r
	223	CharCount = UnicodeBSPrintAsciiFormat (\r
	224	(CHAR16 *) (Record + 1),\r
	225	EFI_STATUS_CODE_DATA_MAX_SIZE,\r
	226	Format,\r
	227	Marker\r
	228	);\r
	229	//\r
	230	// Change record data type to DebugType.\r
	231	//\r
	232	CopyGuid (&Record->Data.Type, &gEfiStatusCodeDataTypeDebugGuid);\r
	233	Record->Data.HeaderSize = Data->HeaderSize;\r
	234	Record->Data.Size = (UINT16) ((CharCount + 1) * sizeof (CHAR16));\r
	235	} else {\r
	236	//\r
	237	// Copy status code data header\r
	238	//\r
	239	CopyMem (&Record->Data, Data, sizeof (EFI_STATUS_CODE_DATA));\r
	240	\r
	241	if (Data->Size > EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
	242	Record->Data.Size = EFI_STATUS_CODE_DATA_MAX_SIZE;\r
	243	}\r
244	CopyMem ((VOID *) (Record + 1), Data + 1, Record->Data.Size);\r
245	}\r
246	}\r
247	\r
248	gBS->SignalEvent (mLogDataHubEvent);\r
249	\r
250	return EFI_SUCCESS;\r
251	}\r
252	\r
253	\r
254	/**\r
255	The Event handler which will be notified to log data in Data Hub.\r
256	\r
257	@param Event Instance of the EFI_EVENT to signal whenever data is\r
258	available to be logged in the system.\r
259	@param Context Context of the event.\r
260	\r
261	**/\r
262	VOID\r
263	EFIAPI\r
264	LogDataHubEventCallBack (\r
265	IN EFI_EVENT Event,\r
266	IN VOID *Context\r
267	)\r
268	{\r
269	DATA_HUB_STATUS_CODE_DATA_RECORD *Record;\r
270	UINT32 Size;\r
271	UINT64 DataRecordClass;\r
272	\r
273	//\r
274	// Use atom operation to avoid the reentant of report.\r
275	// If current status is not zero, then the function is reentrancy.\r
276	//\r
277	if (InterlockedCompareExchange32 (&mLogDataHubStatus, 0, 1) == 1) {\r
278	return;\r
279	}\r
280	\r
281	//\r
282	// Log DataRecord in Data Hub.\r
283	// Journal records fifo to find all record entry.\r
284	//\r
285	while (TRUE) {\r
286	//\r
287	// Retrieve record from record FIFO until no more record can be retrieved.\r
288	//\r
289	Record = RetrieveRecord ();\r
290	if (Record == NULL) {\r
291	break;\r
292	}\r
293	//\r
294	// Add in the size of the header we added.\r
295	//\r
296	Size = sizeof (DATA_HUB_STATUS_CODE_DATA_RECORD) + (UINT32) Record->Data.Size;\r
297	\r
298	if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) {\r
299	DataRecordClass = EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
300	} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) {\r
301	DataRecordClass = EFI_DATA_RECORD_CLASS_ERROR;\r
302	} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {\r
303	DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG;\r
304	} else {\r
305	//\r
306	// Should never get here.\r
307	//\r
308	DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG \|\r
309	EFI_DATA_RECORD_CLASS_ERROR \|\r
310	EFI_DATA_RECORD_CLASS_DATA \|\r
311	EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
312	}\r
313	\r
314	//\r
315	// Log DataRecord in Data Hub\r
316	//\r
317	mDataHubProtocol->LogData (\r
318	mDataHubProtocol,\r
319	&gEfiDataHubStatusCodeRecordGuid,\r
320	&gEfiStatusCodeRuntimeProtocolGuid,\r
321	DataRecordClass,\r
322	Record,\r
323	Size\r
324	);\r
325	\r
326	ReleaseRecord (Record);\r
327	}\r
328	\r
329	//\r
330	// Restore the nest status of report\r
331	//\r
332	InterlockedCompareExchange32 (&mLogDataHubStatus, 1, 0);\r
333	}\r
334	\r
335	\r
336	/**\r
337	Locate Data Hub Protocol and create event for logging data\r
338	as initialization for data hub status code worker.\r
339	\r
340	@retval EFI_SUCCESS Initialization is successful.\r
341	\r
342	**/\r
343	EFI_STATUS\r
344	DataHubStatusCodeInitializeWorker (\r
345	VOID\r
346	)\r
347	{\r
348	EFI_STATUS Status;\r
349	\r
350	Status = gBS->LocateProtocol (\r
351	&gEfiDataHubProtocolGuid, \r
352	NULL, \r
353	(VOID **) &mDataHubProtocol\r
354	);\r
355	if (EFI_ERROR (Status)) {\r
356	mDataHubProtocol = NULL;\r
357	return Status;\r
358	}\r
359	\r
360	//\r
361	// Create a Notify Event to log data in Data Hub\r
362	//\r
363	Status = gBS->CreateEvent (\r
364	EVT_NOTIFY_SIGNAL,\r
365	TPL_CALLBACK,\r
366	LogDataHubEventCallBack,\r
367	NULL,\r
368	&mLogDataHubEvent\r
369	);\r
370	\r
371	ASSERT_EFI_ERROR (Status);\r
372	\r
373	return EFI_SUCCESS;\r
374	}\r
375	\r
376	\r